/Engine/Source/Runtime/Engine/Classes/Engine/LocalPlayer.h
This should be deprecated when engine code has been changed to expectFPlatformUserIdUE_DEPRECATED(5.x, "Use GetUniqueNetIdForPlatformUser instead")
[FUniqueNetIdRepl](API\Runtime\Engine\GameFramework\FUniqueNetIdRepl) GetUniqueNetIdFromCachedControllerId() const